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      <img src="../logo.svg" class="logo" alt=""><h1>Barplot comparing sites on 1 indicator, based on full output of ejamit() easy high-level function for getting a quick look at top few sites</h1>
      <small class="dont-index">Source: <a href="https://github.com/USEPA/EJAM/blob/HEAD/R/ejam2barplot_sites.R" class="external-link"><code>R/ejam2barplot_sites.R</code></a></small>
      <div class="d-none name"><code>ejam2barplot_sites.Rd</code></div>
    </div>

    <div class="ref-description section level2">
    <p>Barplot comparing sites on 1 indicator, based on full output of ejamit()
easy high-level function for getting a quick look at top few sites</p>
    </div>

    <div class="section level2">
    <h2 id="ref-usage">Usage<a class="anchor" aria-label="anchor" href="#ref-usage"></a></h2>
    <div class="sourceCode"><pre class="sourceCode r"><code><span><span class="fu">ejam2barplot_sites</span><span class="op">(</span></span>
<span>  <span class="va">ejamitout</span>,</span>
<span>  varname <span class="op">=</span> <span class="st">"pctlowinc"</span>,</span>
<span>  names.arg <span class="op">=</span> <span class="cn">NULL</span>,</span>
<span>  main <span class="op">=</span> <span class="st">"Comparison of Sites"</span>,</span>
<span>  xlab <span class="op">=</span> <span class="st">"Sites"</span>,</span>
<span>  ylab <span class="op">=</span> <span class="cn">NULL</span>,</span>
<span>  sortby <span class="op">=</span> <span class="cn">NULL</span>,</span>
<span>  topn <span class="op">=</span> <span class="fl">5</span>,</span>
<span>  <span class="va">...</span></span>
<span><span class="op">)</span></span></code></pre></div>
    </div>

    <div class="section level2">
    <h2 id="arguments">Arguments<a class="anchor" aria-label="anchor" href="#arguments"></a></h2>


<dl><dt id="arg-ejamitout">ejamitout<a class="anchor" aria-label="anchor" href="#arg-ejamitout"></a></dt>
<dd><p>list like output of ejamit(), where one element is table of sites,
one row per site, column names at least varname (and "ejam_uniq_id" if names.arg not specified)</p></dd>


<dt id="arg-varname">varname<a class="anchor" aria-label="anchor" href="#arg-varname"></a></dt>
<dd><p>name of a column in results_bysite, bar height</p></dd>


<dt id="arg-names-arg">names.arg<a class="anchor" aria-label="anchor" href="#arg-names-arg"></a></dt>
<dd><p>optional vector of labels on the bars, like short site names or IDs</p></dd>


<dt id="arg-main">main<a class="anchor" aria-label="anchor" href="#arg-main"></a></dt>
<dd><p>optional, for barplot</p></dd>


<dt id="arg-xlab">xlab<a class="anchor" aria-label="anchor" href="#arg-xlab"></a></dt>
<dd><p>optional, for barplot</p></dd>


<dt id="arg-ylab">ylab<a class="anchor" aria-label="anchor" href="#arg-ylab"></a></dt>
<dd><p>optional, for barplot, plain English version of varname, indicator that is bar height</p></dd>


<dt id="arg-sortby">sortby<a class="anchor" aria-label="anchor" href="#arg-sortby"></a></dt>
<dd><p>set to FALSE if you want to have no sorting, or to an increasing vector
that provides the sort order</p></dd>


<dt id="arg-topn">topn<a class="anchor" aria-label="anchor" href="#arg-topn"></a></dt>
<dd><p>optional, show only the top n sites – Does not show all sites
by default – only shows top n sites.</p></dd>


<dt id="arg--">...<a class="anchor" aria-label="anchor" href="#arg--"></a></dt>
<dd><p>passed to barplot()</p></dd>

</dl></div>
    <div class="section level2">
    <h2 id="value">Value<a class="anchor" aria-label="anchor" href="#value"></a></h2>
    <p>same as <code><a href="https://rdrr.io/r/graphics/barplot.html" class="external-link">barplot()</a></code></p>
    </div>
    <div class="section level2">
    <h2 id="see-also">See also<a class="anchor" aria-label="anchor" href="#see-also"></a></h2>
    <div class="dont-index"><p><code><a href="plot_barplot_sites.html">plot_barplot_sites()</a></code></p></div>
    </div>

    <div class="section level2">
    <h2 id="ref-examples">Examples<a class="anchor" aria-label="anchor" href="#ref-examples"></a></h2>
    <div class="sourceCode"><pre class="sourceCode r"><code><span><span class="co"># Quickly compare top few sites by population count nearby</span></span>
<span><span class="va">out</span> <span class="op">&lt;-</span> <span class="fu">copy</span><span class="op">(</span><span class="va">testoutput_ejamit_10pts_1miles</span><span class="op">)</span></span>
<span><span class="fu">ejam2barplot_sites</span><span class="op">(</span><span class="va">out</span>, <span class="st">"pop"</span><span class="op">)</span></span>
<span></span>
<span><span class="co"># Show all 10,</span></span>
<span><span class="fu">ejam2barplot_sites</span><span class="op">(</span><span class="va">out</span>, <span class="st">"traffic.score"</span>, topn <span class="op">=</span> <span class="fl">10</span>, cex.names <span class="op">=</span> <span class="fl">0.8</span><span class="op">)</span></span>
<span></span>
<span><span class="co"># Sort by site id</span></span>
<span><span class="fu">ejam2barplot_sites</span><span class="op">(</span><span class="va">out</span>, <span class="st">"blockcount_near_site"</span>, topn <span class="op">=</span> <span class="fl">10</span>,</span>
<span>  sortby <span class="op">=</span> <span class="op">-</span><span class="fl">1</span> <span class="op">*</span> <span class="va">out</span><span class="op">$</span><span class="va">results_bysite</span><span class="op">$</span><span class="va">ejam_uniq_id</span><span class="op">)</span></span>
<span></span>
<span><span class="co"># Plot a calculated variable</span></span>
<span><span class="va">sites</span> <span class="op">&lt;-</span> <span class="fu">copy</span><span class="op">(</span><span class="va">out</span><span class="op">$</span><span class="va">results_bysite</span><span class="op">)</span></span>
<span><span class="va">sites</span><span class="op">$</span><span class="va">log_traffic</span> <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/Log.html" class="external-link">log10</a></span><span class="op">(</span><span class="va">sites</span><span class="op">$</span><span class="va">traffic.score</span><span class="op">)</span></span>
<span><span class="fu"><a href="plot_barplot_sites.html">plot_barplot_sites</a></span><span class="op">(</span><span class="va">sites</span>, <span class="st">"log_traffic"</span>, ylab <span class="op">=</span> <span class="st">"Traffic Score (log10 scale)"</span>, topn <span class="op">=</span> <span class="fl">10</span><span class="op">)</span></span>
<span></span>
<span><span class="co"># On a large monitor, 100 sites with legible labels if the window is wide enough</span></span>
<span><span class="fu">ejam2barplot_sites</span><span class="op">(</span><span class="va">testoutput_ejamit_100pts_1miles</span>, topn <span class="op">=</span> <span class="fl">100</span>, cex.names <span class="op">=</span> <span class="fl">0.4</span><span class="op">)</span></span>
<span></span></code></pre></div>
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